kclient: fix snap_rwsem write/read redux

diff --git a/src/kernel/caps.c b/src/kernel/caps.c
index 0f32f99d60ae0cd3efbbff86359ae45b9dac704a..266a6c076a275637817759a7a8ab73f021df203d 100644 (file)
--- a/src/kernel/caps.c
+++ b/src/kernel/caps.c
@@ -450,7 +450,7 @@ first:
 ack:
                /* take snap_rwsem before session mutex */
                if (!took_snap_rwsem) {
-                       if (down_write_trylock(&mdsc->snap_rwsem) == 0) {
+                       if (down_read_trylock(&mdsc->snap_rwsem) == 0) {
                                dout(10, "inverting snap/in locks on %p\n",
                                     inode);
                                spin_unlock(&inode->i_lock);